Filter.



M. s. HOPKINS.

FILTER.

APPLICATION FILED APR.12, 1912 Patented Dec. 17, 1912.

INVENTOR Atiomey MATHEW s. HOPKINS, or HIGHLAND, MARYLAND.

To all whom it may concern Be it known that-I, MATHEWISZIHOPKINS,

a citizen of the United States, residing at.

Highland, in the county of Howard and State ofMaryland, have invented certain new and useful Improvements in Filters; and I do hereby declare the following to be a' full, clear, and exact description of the invention, such as will enable others skilled int-heart to which it appertains to make and use the same.

This invention relates to improvements in filters and more-particularly tojsuch as will .operate and separate water and foreignmatter from such liquid as benzin,the object of the invention being to provide a filter of .the character described, that shall becom' pact in structure and at the same time have,

a maximum working capacity, and which shall operate toetfectually separate 'fiuid, such as benzin, from a mixture or an emulsion containing the same.

WVith this object-in view the invention consists in certain novel features of con,- struction and combinations of parts as here inafter 'set forth and pointed out in the claims. e

In the accompanying drawings, Figure 1 is a sectional view of a filter embodying 'my improvements. Fig. 2 is a sectional view-on the line maz of Fig. 1. Fig. 3 is an enlarged view illustrating thefmanner of assembling the filter. elements, and Fig. 4 is a view in section of a portion of the structure shown in Fig. 3.

1 represents a cylinder which may consist of asect-ion of pipe of comparatively large diameter. This cylinder or pipe section is made with a closed bottom 2 and with a removable top3, the latter being secured in place by suitable clamping bolts.- At the lower end of the cylinder 1, an outlet pipe at communicates therewith and is provided with a suitable valve 5. At a point intermediate of the ends of the cylinder and removed appreciable distances from each of said-ends, is an inlet pipe or conveyer 6, by means of which the emulsion or mixture to be filtered enters the cylinder. An outlet pipe 7 for filtered benzin projects through the'wallsof the cylinder 1 in proximity to the upper end thereof and the inner end of this pipe is honnected, by means of suitable coupling devices 8 with the upper endof Specification of LettersPatent P3, I Application filed April 12, 1912. Serial1W0.690,437.

tented Dec. 17, 11:91: 3.

L1t)he filter appliances -which latter will now e described in detail.

n thecylinder 1' above the inlet 6 and in constructing these devices I employ apipe section 9-secured at its upper end to the coupl1ng 8 so asto communicate with the pipe .7, and the said pipe 9 is provided in its walLwith a plurality of perforations 10, each pair of said perforations beinglocated at diametrically opposite points of the wall of said pipe. During the assembling of the filtering devices (and before the same are placetiwithin the cylinder 1), several rods 11, preferably of wood,.are placed at each side' of the pipe-section 9 and spaced wooden rodsare provided with'alined transverseiholes 12'and said holes also aline with the-pairs of holes 10 in, the pipe 9. Cords 13 are'passed through the aliningholes of alternate rods .11 rods 11 and pipe 9 shall have ed, as above described, by cords 13,-the rods and cords to enc'ircle the pipe 9 and then the structure will appear as shown in Fig. 2 gvith' the spaced rodsencircling the pipe 9. This structure is inclosed within a filter bag 14 (such .as felt) and the whole is inserted been connectmeans of the through thetop of the cylinder 1 and connected, through the'medium of the coupling 8 with the pipe- 7,-after which the cover 3 is secured in position on the top of the cylinder and the apparatus is then ready to be operated.

When the cylinder has been supplied with emulsion rises sufiicientlyin the cylinder to immerse the lowei- .endof the filtering appliances, the benzin contained in the emulsion will be caused by capillary attraction to find its way through the bag 14:, the cords 13 through theholes '10 of which said benzin will enter said pipe 9 and, as the pressure of the fluid entering. by the inlet 6 increases, the filtered benzin will rise in the pipe 9 and finally find an outlet charge pipe 7. The natural tendency of the ben'zin contained in the emulsion in the lower part of the cylinder 1, will be to'rise toward the surface of the body of the emulsion and leave the water and other foreign The filtering appliances are located witlr v from the latter and from eachother. These through the disand the pipe 9. After the will be caused emulsion of ,benzin and water until said' andamong the wooden rods 11 to the pipe 9, p

matter in the lower portion of the cylinder, and when the filtering operation shall have been completed, the water and foreign matter can be Withdrawn from the bottom of the cylinder through the outlet 4.

Having fully described my invention What I claim as new' and desire to secure by Let-- ters Patent, is: 1

1. In a filter, the combination with a pipe or cylinder provided between its ends with an inlet for fluid to be filtered, of a perforated: pipe in the upper portion. of said pipe orcylinder, a plurality of rodssurrounding said perforated pipe, cords connecting said and transversely through said perforated pipe, a filtering medium associated with said rods and means for discharging filtered liquid from. the upper end of said perforated pipe.

3. In a filter, the combination with a cylinder provided with an inlet for liquid to be filtered, of apertorated pipe located in said cylinder above said inlet, a plurality of rods surrounding-said perforated pipe and spaced therefrom and from each other, said rods having transverse holes, cords passing through said transverse holes in the rods and transversely through the perforated pipe, a bag inclosing said rods and perforated pipe, and an outlet pipe for filtered liquid communicating With the upper end of said perforated pipe. I

In testimony whereof, I have signed this specification in the presence of two subscribing Witnesses.

MATHEW s. HOPKINS.

Witnesses:

R. S. FEReUso'N, G120. B. PITT. 

